{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898121,-0.439749,0.000000,0.000000,0.283935,-0.579893,0.763613,0.000000,-0.334856,0.683891,0.648201,0.000000,-2138765.437901,4368100.085436,4112424.712702,1],    "boundingVolume": {    "region": [2.026050,0.705108,2.026182,0.705331,0.000000,19.091116]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1844671.b3dm"}}}